Sub: Detailed guidelines for re-testing of samples - reg.

Re-testing of imported samples: written request and named laboratory referral govern second tests and authority decisions.

Importers must request re-tests in writing within ten days of the first test report. If granted, the Additional/Joint Commissioner will name a suitable laboratory; re-testing shall use remnants or duplicate sealed samples in Customs custody, or be re-sampled in the importer's presence. Re-test samples should be marked 'immediate.' The competent authority may rely on either the first test or the re-test, recording written reasons, and may order a further re-test while the consignment remains under Customs control. Re-testing is generally facilitated but may be denied occasionally with written reasons; departmental-initiated re-tests follow the same procedure.